1. The tremendous advance accomplished in recent years on shore in the science of illumination has not been duplicated on board ship, and compared with that of a well designed office system, lighting in staterooms, crew's quarters and living spaces in general on naval vessels is well behind the latest practice on land. In this particular phase of increased efficiency the times have moved and we can hardly be said to have moved with them.
2. It is difficult to determine upon a definite lighting standard of so many foot-candles2 for each type of quarters on account of the large number of difficulties not encountered in shore installations, such as low deck height, deep beams, uniform cases, mess table stowage, ventilation, fire main and other large piping, causing the lights to be masked. The chief faults at present are (x) insufficient direct illumination; (2) insufficient general illumination;
(3) lamps presenting brilliant points in line of vision. As a result of this the efficiency of work of all kinds done below deck is considerably impaired and eye strain is greatly increased.